Feeding device for tentering-machines.



B. PARKINSON.

FEEDING DEVICE FOR TENTERING MAGHINES. APPLICATION FILED JULY 24. 1909.

961,5Q6, Patented June 14,1910.

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B. PARKINSON FEEDING DEVICE FOR TENTERING MACHINES. APPLICATION FILED JULY 24, 1909.

961,526., Patented June 14,1910.

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BENONI PARKINSON, OF EAST GREENWICH, RHODE ISLAND.

FEEDING DEVICE FOR TENTERING-MACHINES.

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To all whom it may concern:

Be it known that I, BENONI PARKINSON, a citizen of the United States, and a resident of East Greenwich, in the county of Kent and State of Rhode Island, have invented a new and Improved Feeding Device for Tentering-l lachines, of which the following is a full, clear, and exact description.

This invention relates to a feeding device for a tentering machine.

guide bar 3.

In present practice an operator stands at the left side of the cloth as it enters the machine, and guides the left edge; another operator stands at the right side of the cloth and guides the right edge. This necessitates the operators standing very near the hot frames, and ordinarily an operator must be relieved after an hours labor. It is customary to allow three feed operators for each machine so that one can be resting while the other two are working.

The object of this invention is to provide a feeding device which will produce a saving in labor and which can be operated by a single operator working continuously. In this way I replace three operators by a single operator, and reduce the cost of feeding the machines to about one-third of the cost under the conditions suggested above.

The invention consists in the construction and combination of parts to be more fully described hereinafter and particularly set forth in the claims.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a longitudinal central section through the device and illustrating the manner in which the device operates in practice; Fig. 2 is a front elevation of the device; Fig. 3 is a plan of the device, certain parts being broken away; and Fig. at is a cross section on the line 4i4: of Fig. 3.

Referring more particularly to the parts, 1, 1, represent standards which are disposed slightly apart and expanded at their upper ends to form heads 2, 2. These heads 2, 2, are connected by a horizontal guide bar 3, and on the same level as this bar, and forward of the same, an adjusting bar or screw 4: is provided. These members 3 and 4: support guide plates 5 which slide freely on the The adjusting screw or rod 4;

Specification of Letters Patent.

Application filed July 24., 1909.

Patented June 14:, 1910.

Serial No. 509,425.

is provided with two threads 6 which engage with the plates 5 so as to adjust them toward each other or away from each other when the screwis rotated by means of a suitable hand wheel 7. The screw thread 6 on one side of the machine is right-hand, and on the other side is left-hand. The upper edges of the guide plates 5 are provided with guide grooves 8, and these grooves receive tongues 9 which project downwardly from slide blocks 10. These tongues are disposed at the inner edges of the slide blocks, as shown. On the rear ends of the slide blocks 10, guide bars 11 are attached by pivot pins 12, and the inner ends of these guide bars are attached by hinges 141 to the ends of the tenter frame 13. The slide blocks 10 are formed with rabbet grooves 15 on their edges, and similar rabbet grooves 16 and 17 are formed in the inner upper edges of the guide bars 11 and in the tentering frame 13. The groove 17 of the tenter frame is provided with guide clips 18 which receive the edges of the cloth as it enters the tentering machine. Adjacent to the frame 13 the guide bars 11 are provided with tension guides 19 which receive the edges of the cloth, and the tension of these guides may be adjusted by means of adjusting screws 20, as will be readily understood. Similar guides 21 are provided at the guide blocks 10, presenting resilient inwardly projecting jaws 22 between which the cloth 23 passes, as shown. These guides 21, however, are not adjustable. Near the frame 13 the guide bars 11 are provided with take-up devices comprising presser rollers 24 which are mounted on the upper ends of plungers 25, and these plungers are guided vertically through the bars, as indicated. The lower ends of the plungers are pressed upwardly by leaf springs 26 which are attached to the under side of the bars, as indicated in Fig. 1.

In Fig. 4, I illustrate the manner of mounting and adjusting the tension guides 19.

Between the standards 1, 1, I provide a tension bar 28 which is fixed in a horizontal position and supported on brackets 29 secured to the standards. The use of this bar will appear more fully hereinafter.

In using the device the cloth 23 which is to be fed to the tentering machine is brought up from a box 27 over the bar 28 into position between the standards 1, 1. The operator stands near the left end of the machine, as viewed in Fig. 3, and feeds the edges of The edges of the cloth run along in the grooves 15, and the joints l2 and l t enable the guide bars and frame 13 to adapt themselves to the edges of the cloth.

In order to produce different effects in the cloth, the tentering frames are frequently mounted so that they may reciprocate. The feeding device permits this movement and when the frame is being reciprocated the guide bars 11 reciprocate also. The blocks 10 at the same time slide back and forth on their guides. While the tentering frame is reciprocating in this way the cloth, however, is moving steadily across the hot frames. The reciprocating movement of the frames tends to produce slack in the cloth and this slack is taken care of by the take-up devices having the spring-pressed rollers 24.

The bar 28 produces a certain desirable tension in the cloth as it is being fed to the feeding device and it assists in giving proper direction to the cloth when it is coming from the remote end of the box 27.

On account of the length of the guide bars 11 it will be seen that the feed operator stands at a considerable distance from the hot frame at a point where the temperature is so low that it is not necessary for the operator to be relieved constantly, as is frequently necessary in the present practice with such machines.

With the arrangement described above it will be evident that a single operator can manage the feeding of a tentering machine without difficulty and on account of the length of the guide bars he will be standing at a point removed sufficiently from the hot frame to enable him to work continuously.

Special attention is called to the means for adjusting the distance between the slide blocks to suit different widths or changing widths of the cloth.

Having thus described my invention, I claim as new and desire to secure by Letters Patent,-

1. A feeding attachment for a tentering machine, comprising a support, guide members carried by said support and extending toward the tentering machine, and tension guides on the guide members to receive the edges of the cloth, the said tension guides having resilient inwardly projecting jaws between which the cloth passes.

2. A feeding attachment for a tentering machine, comprising a support, guide bars on said support and extending toward the tentering machine, resilient jaws on the guide bars between which the clot-h passes, and take up devices carried by said guide bars and adapted to take up the slack of the cloth when the tentering frame reciprocates.

3. A feeding attachment for a tentering machine, comprising a pair of standards,

guide plates supported by said standards and provided with guide grooves, and guide members mounted at one end to slide in said grooves, and having means for guiding the cloth toward the tentering machine.

4:. A feeding attachment for a tentering machine, comprising supports, blocks mounted on said supports and adapted to slide in the direction of advance of the cloth, and guide bars jointed to said slide blocks and engaging the edges of the cloth.

5. A feeding attachment for a tentering machine, comprising fixed supports presenting guide grooves, slide blocks adapted to slide in said grooves in the direction in which the cloth advances, and guide bars jointed to said slide blocks and extending longitudinally near the edge of the cloth, said guide bars having tension guides for engaging the edges of the cloth.

6. A feeding attachment for a tentering machine, having a pair of standards, guide plates, means for supporting said guide plates upon said standards, means for adjusting the distance between said guide plates, slide blocks guided on said guide plates, and tension guides carried by said slide blocks adapted to engage the edges of the cloth.

7. A feeding attachment for a tentering machine, comprising a pair of standards, an adjusting screw mounted between said standards, guide plates mounted on said adjusting screw, slide blocks mounted to slide on said guide plates, guide bars jointed to said slide blocks and extending toward the tentering machine, and tension guides carl1;ied by said guide blocks and said guide ars.

8. A feeding attachment for a tentering machine, comprising a pair of standards, an adjusting screw mounted between said standards, guide plates mounted on said adjusting screw, slide blocks mounted to slide on said guide plates, guide bars jointed to said slide blocks and extending toward the tentering machine, tension guides carried by said guide blocks and said guide bars, and spring-pressed members adapted to engage the cloth near the tension guides carried by said guide bars.

9. A feeding attachment for a tentering machine, comprising supports, guide bars mounted to slide on said supports and adapted to be attached to the tentering frame, and take-up devices carried by said guide bars and adapted to take up the slack of the cloth when the tentering frame reciprocates.

10. A feeding attachment for a tentering machine comprising a support, guides carried by said support and adjustable toward and from each other, slide blocks mounted to slide on said guides, and guide bars connected at one end with said blocks and adapted to be connected at the other end to the tentering frame, the said slide blocks and guide bars having means for guiding the edges of the cloth.

11. A feeding attachment for a tentering machine, comprising a support, guide bars carried by said support and having means for guiding the cloth toward the tentering machine, and take up devices carried by said guide bars and adapted to take up the slack of the cloth when the tentering frame reciprocates, the said take up devices comprising piungers guided vertically through the said bars, rollers mounted on the upper ends of said plungers, and springs attached to the under side of said bars and engaging the 15 BENONI PARKINSON.

Witnesses:

F. D. AMMEN, PHILIP D. ROLLHAUS. 

